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Finding the Fourth Proportional to 114,545.80, 171,861.90 and 55,433.80

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Solution

The fourth proportional to 114,545.80, 171,861.90 and 55,433.80 is: 83,171.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    114,545.80 : 171,861.90 = 55,433.80 : x
  2. Step 2: Convert to fraction form
    114,545.80/171,861.90 = 55,433.80/x
  3. Step 3: Cross multiply
    114,545.80x = 171,861.90 × 55,433.80
  4. Step 4: Simplify right side
    114,545.80x = 9,526,958,192.22
  5. Step 5: Solve for x
    x = 9,526,958,192.22/114,545.80
  6. Step 6: Final answer
    x = 83,171.61

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.